Designed for testing insert earphones and other audio transducers, Model AEC204 occluded-ear simulator includes built-in microphone and is compliant with IEC 60318-4. Models AEC202 and AEC203, compliant with IEC 60318-5, are 2 cm³ couplers designed to be used with ½ in. and 1 in. microphones, respectively. Using AUDit™ software, users can automatically correct RETSPL measurements for effects of microphone and coupler while tracking calibration history in database.
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